Saab GB is currently owned by US General Motors (GM) and is set to be acquired by Spyker Cars for the sum of £1 ($1.5).

"We don't see anything strange in this. We have said all along that no money will move from Saab to Spyker Cars. And it does not in this case either. Saab GB is a completely independent firm which Saab does not own," Victor Muller said.

Spyker Cars has until July 15th to hand over the outstanding 175 million kronor to GM to complete the purchase of Saab. Swedish rules prohibit buying a firm with its own cash and Muller argues that the latest move is not in breach of these regulations.

But Lennart Ihredal of the professional institute for authorized public accountants (FAR) said the set-up could test the limits of what is acceptable.

"You would then have to look at the regulations in place in the various countries. But in an acquisition such as this I would have it on the check list, so that you don't breach any regulations," Ihredal told TV4.